HMC291SE Datasheet, PDF (1/5 Pages) Analog Devices – HMC291SE

Typical Applications
The HMC291SE is ideal for:
• Cellular
• PCS, ISM, MMDS
• WLL Handset & Base Station
HMC291SE
v05.1216
4 dB LSB SILICON 2-BIT POSITIVE CONTROL
DIGITAL ATTENUATOR, 0.7 - 4.0 GHz
Features
RoHS Compliant Product
4 dB LSB Steps to 12 dB
Single Positive Control Per Bit, 0/+3V or +5V
Typical Step Error : ±0.3 dB
Miniature SOT 26 Package: 9 mm²
Functional Diagram
General Description
The HMC291SE is a general purpose broadband
2-bit positive control silicon IC digital attenuator in
6 lead SOT26 surface mount plastic package. The
insertion loss is typically in between 0.4 dB - 1 dB
through operating frequency range. The attenuator
bit values are 4 (LSB) and 8 dB for a total attenuation
of 12 dB. State error is excellent at ± 0.4 dB typical
with an IIP3 of up to 57 dBm. Two bit control voltage
inputs, toggled between 0V and +3V or +5V, are used
to select each attenuation state at less than 25 µA
each. A single VDD supply voltage of +3V to +5V
applied through an external 4.7K Ohm resistor is
Electrical Specifications,
required.
T_A = +25°C, VDD = +3V to +5V & VCTL = 0/VDD (Unless Otherwise Stated)
Parameter
Frequency
Min.
Typical
Max.
Units
Insertion Loss
0.7 - 1.4 GHz
1.4 - 2.3 GHz
2.3 - 2.7 GHz
2.7 - 4.0 GHz
0.5
0.65
dB
0.5
0.65
dB
0.6
0.7
dB
0.8
1.32
dB
Attenuation Range
0.7 - 4.0 GHz
12
dB
Return Loss
(RF1 & RF2, All Atten. States)
0.7 - 1.4 GHz
20
25
dB
1.4 - 4.0 GHz
17
27
dB
State Error
All Attenuation States
All Attenuation States
All Attenuation States
All Attenuation States
Input Power for 0.1 dB Compression (Input P0.1dB)
5V^[1]
3V
0.7 - 1.4 GHz
1.4 - 2.3 GHz
2.3 - 2.7 GHz
2.7 - 4.0 GHz
0.7 - 4.0 GHz
± (0.1 + 4% of Atten. Setting Max)
± (0.2 + 2% of Atten. Setting Max)
± (0.4 + 3% of Atten. Setting Max)
± (0.4 + 4% of Atten. Setting Max)
28
27
dB
dB
dB
dB
dBm
dBm
Input Third Order Intercept Point (IIP3)
(Two-tone Input Power = 15 dBm Each Tone)
5V
0.7 - 4.0 GHz
52
57
59
dBm
3V
52
54
56
dBm
Switching Characteristics
t_RISE, t_FALL (10/90% RF)
t_ON, t_OFF (50% CTL to 10/90% RF)
[1] Compression point is above maximum input power
0.7 - 4.0 GHz
250
ns
300
ns
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